28647780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{68209}}^1$

素因数の和:68228

約数の個数: 48

約数和(自身を含む): 91674240

約数和(自身を除く): 63026460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 68209, 136418, 204627, 272836, 341045, 409254, 477463, 682090, 818508, 954926, 1023135, 1364180, 1432389, 1909852, 2046270, 2387315, 2864778, 4092540, 4774630, 5729556, 7161945, 9549260, 14323890, 28647780]

約数ペア:

[(1, 28647780), (2, 14323890), (3, 9549260), (4, 7161945), (5, 5729556), (6, 4774630), (7, 4092540), (10, 2864778), (12, 2387315), (14, 2046270), (15, 1909852), (20, 1432389), (21, 1364180), (28, 1023135), (30, 954926), (35, 818508), (42, 682090), (60, 477463), (70, 409254), (84, 341045), (105, 272836), (140, 204627), (210, 136418), (420, 68209)]